FME Facegenics expander in Dubai: bone-anchored midface expansion for selected cases

Key facts

• Bone-anchored expander spreading force across the midface
• Reserved for selected cases with genuine midfacial deficiency
• Candidacy is confirmed on CBCT, not photographs
• Custom-designed to each patient's anatomy
• Braces or aligners usually follow expansion

What FME is

FME stands for Facegenics Midface Expander. Like MARPE and MSE, it is a bone-anchored expander, meaning it is attached to the bone with temporary anchorage rather than relying on the teeth alone. The difference is in how the forces are distributed: FME is designed to spread expansion over a wider area of the midfacial skeleton. The aim is to widen the face itself — including the structures around the nasal cavity — rather than only the dental arch. Each appliance is custom-made to the patient's anatomy from 3D imaging and digital scans. Because it is used for a specific problem, it is reserved for selected cases rather than offered as a routine expander.

How FME differs from MSE and MARPE

MARPE is the broad category of miniscrew-assisted palatal expanders, and MSE is a specific MARPE design with four mini-implants. Both concentrate their effect around the midpalatal suture and are very effective for many adults and older teens with a narrow upper jaw. FME is considered when the deficiency is wider than the palate alone, and when airway and facial widening, rather than only arch correction, are the main goals. In other words, MSE or MARPE suits most patients who need bone-anchored expansion, while FME is a more specialised option for those whose CBCT shows midfacial narrowness that standard expansion is unlikely to address adequately. Dr. Pacha explains the reasoning for any recommendation.

Who is a candidate

A typical FME candidate has a narrow nasal airway together with genuine midfacial deficiency on CBCT — not simply crowded teeth or a mild crossbite. Patients may notice nasal breathing difficulty, a narrow smile and a flat or narrow midface, and some have previously been advised that only surgery could help. Candidacy is confirmed by CBCT and an assessment of the facial pattern, never from photographs alone. Healthy gums, adequate bone and the ability to attend regular reviews are needed. Patients with symptoms of sleep apnoea should have a sleep study, and nasal problems such as septal deviation are assessed by an ENT specialist, because expansion is only one part of the airway picture.

CBCT planning and custom fabrication

Planning begins with a low-dose CBCT scan to measure the midface, palate, nasal cavity, bone thickness and suture anatomy, along with a digital intraoral scan of the teeth and bite. From these, Dr. Pacha decides whether FME is likely to achieve more than a standard expander and designs the appliance and anchorage positions around your anatomy. The appliance is then custom-fabricated. Findings are explained clearly with a written report, and you receive a written plan describing the steps, the expected sequence of follow-up treatment and alternatives. As with other bone-anchored expanders, the plan is confirmed only after an in-person consultation in Dubai, not remotely.

What to expect during treatment

Anchorage is placed under local anaesthetic, and the expander is fitted. Activation then follows a controlled schedule set by Dr. Pacha, with regular reviews to monitor progress, hygiene and comfort. Pressure in the palate, nose or cheeks is common during activation and usually settles. A gap between the upper front teeth often appears as the bone widens; it is closed later during alignment with braces or aligners. After the target expansion, the appliance stays in place to allow bone to consolidate. Outcomes vary between individuals, and no specific change in breathing or appearance can be promised; FME does not treat sleep apnoea on its own. Report persistent pain, swelling or a loose component promptly.

In adults the midline suture of the palate has usually fused, so traditional expanders mostly tip teeth instead of widening the jaw. MARPE anchors the expander to the palatal bone with small miniscrews, allowing skeletal expansion in many adults without surgical expansion. Published clinical studies, including randomised trials, report improvements in nasal airway dimensions and, in selected patients, in sleep-disordered breathing measures.

Prepared by the Manhal Medical Center editorial team · Updated: 2026-10-18 · Treating specialist: Dr. Moaiyad Pacha

This page is general information and does not replace a consultation. Suitability, risks and results vary between patients.